Capture It is a FREE application designed to help Blackberry users and developers share a picture of their screen with ease. Many bloggers use screenshots to review applications, people showing off their new home screens, and developers wanting to show their application to consumers online. Capture It allows you to take a screen shot, and save a jpeg to your device. If your BlackBerry has a memory card inserted, the capture will be saved there. If no memory card is available it will be saved to the device memory. You can download Capture It OTA (http://m.thetechmogul.com) or load it via Desktop Manager (Desktop (alx) 1.3). The application runs on all Blackberry devices with OS 4.3 or higher.
Capture It examples:
See also Capture Screenshot Image on iPhone (3G) and iPod Touch 2.0 Without Screen Shot Utility – HowTo